Gyroscope.



vP. .SCHILOWSKY.

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GYROSCOPE.

APPLICATION FILED MAR. I, 1910.

Patented Apr. 27, 1915.

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PETER SCHI'DOWSKY, OFl SIMBIRSK, RUSSIA.

GYROSCOPE.

Specication of Letters Patent.

Patented Apr. 27, 1915.

Application led March 1, 19l0. Serial N o. 546,681.

T0 all whom it may concern Be it known that I, PETER ScH-ILowsnY, a subject of the Czar of Russia, residing at Simbirsk, in Russia, -vice-governor of Simbirslr, in Russia, have invented certain new and, useful Improvements in G ryroscopes, of which the following is a specifica tion.

This invention relates to means for rendering stable apparatus, which is normally in unstable equilibrium, by the action of a gyroscope or gyroscopes which are mounted in such a manner that they are themselves in unstable equilibrium, for instance by being journaled in a frame which is pivotally mounted on the apparatus with its pivot axis transverse to the line of support of the apparatus and in a plane below the center of gravity of the gyroscope. Now itis well known that when a gyroscope is so suspended that the oscillatory movement of the gyroscope mounting about its axis of suspension gives rise to a synchronous oscillating movement of the apparatus about its line of support; such swinging movement of the gyroscope arises more particularly, and its amplitude develops more quickly, when the gyroscope rotates at a comparatively low speed, but if an impulse or pressure or a series of such impulses is applied to thegyroscope mounting when it begins to oscillate, such impulses if of proper strength have the eii'ect of annulling the swing of the gyroscope provided they are applied in the direction in which the gyroseope is swinging at the'moment of application; and consequently the yoscillatory movement of the apparatus due to the swinging movement of the gyroscope will be simultaneously annulled or counteracted.

This invention consists in improvements according to which the impulse or series of impulses applied, in the manner and for the purpose referred to above, are of a number and strength appropriate or proportional to the extent of the oscillation of the apparatus about its line of support.

The invention may be applied t0 any apparatus in which stability of movement is obtained by means of gyroscopes, but it is particularly applicable for the maintenance of the lateral stability of mono-track vehicles in general, and it will be hereinafter more particularly described with reference to such vehicles.

According to this invention therefore stability of the vehicle frame is obtained by maintaining the plane of rotation of the gyroscope 1n a plane at an inclination to the plane of support of the vehicle frame appropriate to the conditions of movement of the vehicle, that is to say according as the vehicle is traveling in a straight line or on a curve in a horizontal or inclined plane, and this result is arrived at by imparting a series of impulses to the gyroscope mounting which have the effect of causing it always to approximate to that plane.

By automatically applying at the appropriate moment a series of impulses to a gyroscope mounted as described, it becomes possible to obtain lateral stability of the vehicle frame with a single gyroscope, even when the gyroscope wheel is running at comparatively low speeds or is imperfectly balanced. Such impulses are imparted to the gyroscope mounting 4from a suitable source 0fpower and are initiated and controlled by means of a penduluml mounted on the vehicle frame to swing transversely tov the trame, and operating when the frame oscillatesA in agiven direction 4to bring a constantly acting source of power into engagementwith the transmitting mechanism, -so as. to impart to the gyroscope mounting through such mechanism a pressure or shock or impulse or a series of such impulses of a number and strength appropriate to the eX- tent of the oscillation of the vehicle frame, such impulses being automatically applied in such a direction as will produce the result above specified. It may be arranged to communicate such impulses to the gyroscope mounting when swinging in both direotions, but usually it would only be necessary to apply the impulses in the one direction 0r the other. l

One arrangement of apparatus for carrying the invention into effect and adapted to communicate -impulses to the gyroscope mounting each time it inclines in one direction, as the vehicle moves in a straight line is illustrated more or less diagrammatically in the accompanying drawings as applied to transverse section on line 3-3 of Fig. l.

In these drawings a represents the vehicle frame which is supported fore and aft on a pair of alined wheels b, b. The gyroscope wheelc is journaled in a frame or mounting d which is pivotally mounted as at d transversely on the vehicle frame, the pivot axis being in avertical plane through the center of the gyroscope when the latter is horizontal, and in a horizontal plane be-V low the centerl of gravity, of the gyroscope. A continuously rotating shaft e driven from any suitable motor, which may-be the motor driving the vehicle, is journaled in suitable bearings transversely to the vehicle frame, and carries a pinion e which is adapted to coperate with a rack f formed or mounted on a quadrant j whichis fulcrumed at f2. The fulcrum or support of the quadrant is capable of being raised and lowered so as to bring the rack f into and out of engagement with pinion e. For example, as shown, theA quadrant f is pivoted on a lever g fulcrumed at g on a standard fixed to the frame of the vehicle, the other end of the lever g beingk provided with means for turn y ing it about its fulcrum so as to thereby raise and lower the quadrant f..

I The quadrant f is elastically connected with the gyroscope mounting d by means of a rod l1, which slides through a collar h pivoted on the gyroscope mounting, a'pair of springs z', i one on either side of the collar provlding the elastic coupling. The tension of these springs is preferably adjustable as by means of nuts jon the rod h, which is screw-threaded for this purpose.

The automatic movement of the quadrant f is effected by means of a pendulum la suspended from a fixed point on the vehicle framei so as to be vfree to swing transversely to the frame. This pendulum is so connected with the lever g that when the frame in clines in one direction the lever g will be actuated so as'. to raise the quadrant and brin the rack f into gear with the pinion e. achtime such inclination of the vehicle frame occurs the pinion e will impart to the rack f -a shock or impulse which is transmitted through the rod lz, and buffer springs z', '-to the gyroscope mounting, and as the oscillation of the vehicle frame and of the gyroscope are synchronous such shocks -or impulses can be and are, in the apparatus herein illustrated, arranged to have the effect of annulling the oscillations .of the gyroscope mounting and consequently of steadying the vehicle.

As shown in the drawings, the pendulum lc is arranged to swing against a iiexible cord l one end of which n; fixed to the frame at Z preferably with provision for altering its length, while the other end is attached to a bell crank lever m which is connected by link fn, with the lever g. The length of the cord Z is. adjusted so that the rack f will be` clear of the pinion e when the vehicle frame is inclined toward that side in which the pendulum lo will swing clear of the cord Z, while when' the vehicle frame is inclined to the other side the rack and pinion will be.

brought into engagement under the action of the pendulum. Should an unstable con- .dition of the vehicle occur oscillations will arise and the vehicle frame will dip rst in one direction, then in an opposite direction, the pendulum meanwhile remaining vertical as the vehicle proceeds in a straight line. As the vehicle dips to that side in which the pendulum causes the rack and pinion to engage, an impulse will be transmitted to the gyroscope mounting. The arrangement described, therefore, automatically maintains the proper plane of rotation pf the gyroscope when traveling in a straight ine.

It will he seen that when the vehicle is moving around a curve so that it becomes inclined by reason of centrifugal force to- Wardy that side in which the pendulum would swing against the `cord if the ve-` h icle were proceeding in an unstable condition and in a straight line, the effect of centrifugal force on the pendulum will be to tend to move it away from the cord, and

when the vehicle is moving around a curve which inclines the vehicle in the opposite direction, the effect of centrifugal force on the pendulum will be to urge it against they cord. As a result the arrangement described` adapts itself automatically to maintaining gagement with' the pinion e by means of v a spring o one end of which is connected with the end of the lever g and the'other end with the vehicle frame, means being preferably provided to vary the tension of the spring. Also it is preferable to provide means for bringing the pinion e into j engagement with the rack f independently vof the automatic mechanism and this may be done by means of a rod and handle such as p fixed to the lever g, so that impulses may thereby be imparted to the gyroscope mounting manually. A similar arrangement to that described may be employed for imparting impulses to the gyroscopewheel, a constantly acting source of power `may be substituted for that described.

Having thus described my invention and the best means I know of carrying the same into practical effect, I claim 1. Means for imparting lateral stability to a body naturally unstable, comprising a rotating gyroscope wheel, a frame supporting the wheel and `pivotally mounted on the body with its pivot axis transverse to the line of support of the body, and in a plane lying between the said' line of support and the center of gravity ofthe wheel, a constantly acting source of power and mechanism adapted to transmit intermittently impulses from the source of power to the frame at the moment oscillating, said mechanism comprising a transmitting member connected to the frame, and means on the body independent of and entirely separate from the gyroscope frame automatically operating when the body oscillates in one direction about its line of support, to cause a driving connection between the said member and the constantly acting source of power.

2. Means for imparting lateral stability to a body naturally unstable, comprising a rotating gyroscope wheel, a frame supporting the wheel and pivotally mounted on the body with its pivot axis transverse to the line of support of the body and in a plane lying between the said line of support, the center of gravity of -the and mechanism adapted to` (transmit intermittently impulses from the source of power to the frame, said mechanism comprising a transmitting member connected to the frame, and means on the body inde pendent of and entirely separate from the gyroscope frame automatically operating when the body oscillates in one direction about its line of support, to cause a driving connection between the said member and the constantly acting source of power, and means automatically operating to disconnect the source of power and the said mechanism as an oscillation of the body terminates so that the period of a series of impulses is proportional to the extent ofthe synchronous oscillations of the body.

3.y Means for imparting lateral stability to a. body naturally unstable, comprising a rotating gyroscope wheel, a frame supporting the wheel and pivotally mounted on the body and in a plane lying between the said line of support and the center of gravity of the wheel, a constantly acting source of power and mechanism adapted to transmit intermittently impulses from the source of power to the frame, said mechanism comprising a transmitting member connected with the frame and means on the body independent of and entirely separate from the gyroscope frame automatically operating when the body oscillates about its line of support, to cause a driving connection between the said member and the constantly acting source of power, a hanging weight mounted on the body to move transversely to the line of support thereof, and means rendered operative by said pendulum for connecting intermittently the said member and the constantly acting source of power.

l. Means for imparting lateral stability to a body naturally unstable, comprising a rotating gyroscope wheel, a frame supporting the wheel, and pivotally mounted on the body with its pivot axis transverse to the li-ne of support of the'body and in a plane lying between the said line of support and the center of gravity of the wheel, a const antly acting source of power, and mechanism adapted to transmit intermittently impulses from the source of power to the frame, said mechanism comprisinga transmitting member connected to the frame, and means on the body independent ofand entirely separate from the gyroscope frame automatically operating when the body oscillates in one direction about its line of support, to cause a driving connection between the said member and the constantly acting source of power, a pendulum mounted on the body to swing transversely to the line of support thereof, means rendered operative by said pendulum for connecting intermittently the said member and the constantly acting source of power, and means automatically operating to disconnect the source of power and the said member as an oscillation of the body terminates so that the period of a series of impulses is proportional to the extent of the synchronous oscillations of the body.

5. Means ior imparting lateral stability to a body naturally unstable, comprisin a gyroscope which includes a wheel rotating on a frame pivotally mounted on the body with itspivot axis transverse to the line of supportof the body and in a plane between said line of support and the center of gravity of the gyroscope wheel, a continuously rotating pinion, a pivoted quadrant rack elastically coupled with the frame work and adapted to engage the pinion, a pendulum mounted to swing transversely to the line of support of the body, and means actuated and controlled by the pendulum and adapted to bring the rack and 'pinion intermittently into engagement.

6. Means for imparting lateral Stability to abody naturally unstable, comprising a gyroscope which includes a wheel rotatingl on a frame pivotally mounted on the body with its pivot axis tranverse to the line of support of the body and in a plane between said line of support and the center of gravity of the gyroscope wheel, a continuously rotating i pinion, a pivoted quadrant rack elastically coupled with the frame work and kwadapted to engage the pinion, a pendulum mounted to swing transversely to the line of support of the bod`y, and means actuated` by the pendulum for raising and lowering the pivoted point of support of the rack so as to bring the latter into and out of gear with the pinion.

7. Means for-imparting lateral stability to a body naturally unstable, comprising a gyroscope which includes a wheel rotatlng on a frame pivotally mountedon the body with its pivot axis transverse to the line of support of the body and in a plane between said line of support and the center of gravity of the gyroscope wheel, a continuously rotating pinion, a pivoted quadrant rack elastically coupled with the frame work and adapted tovengage the pinion, al pendulum mounted to swing transversely to the line of support ofthe body, mechanism for raising and lowering, the point of support of the rack so as to bring the latter into and out of gear with the pinion, and a flexible connection connected with the said mechanism and ada ted to be placed under tension by the pen ulum when the body frame inclines toward oneside of its lineof support and thereby actuate the said mechanism.

8. Means for imparting lateral stabilityy to a body naturally unstable, eomprisin the combination of a rotating gyroscope w eel, a frame supporting the wheel and pivotally mounted on the body with its pivotA axis transverse to the line of support of the body and ina plane lying between the said line of support and the center of gravityof the wheel, a constantly `acting source of power, and mechanism adapted to ytransmit intermittently impulses from the source of power tothe frame, said mechanism comprising a. transmitting member connected to the frame, and means on the body independent of and entirely separate from the gyroscope 'frame automatically operating when the body oscillates in one direction about its line of support, to cause a driving conneci 

